Every one accepts melta spam as a fact now.
Get over it
This isn't about is it bad or good. This is a bit of a hypothetical question.
Melta is a 2 bladed weapon. It adds to the damage table (AP1). And gives enhanced penetration (2D6).
Do you think they would be as prevalent with only one of these rules? Say Strength 9, plus one on the table but no pen bonus. Or a weapon that still pentrates as easily, but doesn't affect the roll?
Something I was just curious about....random musings and all that.